difference between int and int32 code example

Example: difference between int32 and int64

Their values range
 Int16 -- (-32,768 to +32,767)

 Int32 -- (-2,147,483,648 to +2,147,483,647)

 Int64 -- (-9,223,372,036,854,775,808 to +9,223,372,036,854,775,807)